【摘 要】
：
The quantum dot hybrid qubit,which can be viewed as a hybrid of spin and charge,has an attractive combination of speed and fabrication simplicity.The Eriksson g
【机 构】
：
UniversityofWisconsin,USA
【出 处】
：
The 1st International Workshop on Frontiers in Quantum Optic
论文部分内容阅读
The quantum dot hybrid qubit,which can be viewed as a hybrid of spin and charge,has an attractive combination of speed and fabrication simplicity.The Eriksson group has implemented initialization,full control of a quantum dot hybrid qubit on the Bloch sphere,and readout,and demonstrated process fidelities of 93 ％and 96 ％for π rotations about the X- and Z-axes of the Bloch sphere.This talk will discuss theoretical work at Wisconsin characterizing the fundamental factors limiting the gate fidelity of the quantum dot hybrid qubit,which demonstrates that process fidelities exceeding the fault-tolerance threshold using surface codes should be achievable without use of dynamical decoupling techniques.A theoretical framework for optimizing controllability and scalability of device designs for multiple qubits will also be presented.
其他文献
毛细管电泳(CE)的核心是电渗流,由于CE中电渗流的不稳定性,因此CE的重现性一般劣于色谱分析(例如高效液相色谱和气相色谱),这限制了CE在常规分析中的应用。在本工作中,我们利用高压泵和六通进样阀建立了一个加压毛细管电泳系统,引入高精度的压力流以改善重现性,提高分析效率。论文第一章从毛细管电泳的分离原理、分离模式、操作及检测方法等几方面进行了综述。第二章介绍了加压毛细管电泳系统的设计思路,并和紫外
Spin-orbit coupling (SOC) leads to a spin-coordinate entanglement producing mixed states in reduced spin subspace.We study two consequences of this entanglement
A phosphorus (31P) donor in silicon is,almost literally,the equivalent of a hydrogen atom in vacuum.It possesses electron and nuclear spins1/2 which act as natu
Decoherence of a central spin in solids is not only an ideal model problem for understanding the foundation of quantum physics but also a critical issue in quan
Circuit quantum electrodynamics (cQED) has drawn considerable recent attention due to its potential to mediate entanglement between distant solid-state qubits.M
G级高抗硫油井水泥是一种化学成分和矿物组成被严格限制的硅酸盐水泥。虽然“山铝”牌P.042.5R水泥各项品质指标与普通硅酸盐水泥标准相比,100%合格并达到优等品的要求,但如
One of the key issues in quantum computation is to realize precise control over quantum qubits in the realistic system.The electron spin suffers the noise resul
本文采用分级电选法分离废印刷电路板中的金属与非金属，对现有的电选工艺进行了改善、优化，克服了目前电选实验过程中细粒金属回收率低的不足。实验采用XDF型φ250×200高压电
Quantum measurements are commonly performed by thresholding a collection of analog detector-output signals to obtain a sequence of single-shot bit values.The in
This talk will discuss our experimental program for implementing a quantum dot hybrid qubit formed by placing three electrons into an electrostatically gated se